If the area is 72.382mm what is the radius

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points

To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.